Avi Loeb, a Harvard astronomer who has made headlines with his theories about alien encounters, will lead a White House ...

Vanity Fair reports from the Capitol Hill conference, where members of a sprawling community of national security experts and ...

From the Greys to the Nordics, these aliens appear frequently across abduction stories and science fiction tales.

Why are we allowing unidentified objects to operate with impunity in our skies?” one expert testified Tuesday.

"Project Hail Mary" really pushes the limit when it comes to non-humanoid aliens. But researchers posit that real aliens ...

As much as Steven Spielberg likes aliens, he seems to prefer holding them at arm’s length. The creatures in Close Encounters ...